ELIZABETH ZEDER BYRNE MD
NPI 1609118116
Emergency Medicine in Chicago, IL
About Elizabeth Zeder Byrne Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELIZABETH ZEDER BYRNE MD (NPI 1609118116) is an individual emergency medicine provider in Chicago, Illinois, licensed in Illinois (036-140161) and active in the NPI registry since March 2013. She is enrolled in Medicare PECOS, is affiliated with Advocate Illinois Masonic Medical Center, and maintains 6 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 6
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Elizabeth Zeder Byrne Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
7Medicare enrollment records show Elizabeth Byrne reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60657
- Reassigned Medicare billing, Illinois enrollment
- 4,870 clinicians in this Medicare group
Harvard, IL 60033
- Reassigned Medicare billing, Illinois enrollment
- 382 clinicians in this Medicare group
Lake Geneva, WI 53147
- Reassigned Medicare billing, Wisconsin and Illinois enrollments
- Also billed through NPI 1598718603 (Wisconsin)
- 271 clinicians in this Medicare group
Rockford, IL 61114
- Reassigned Medicare billing, Illinois enrollment
- 1,375 clinicians in this Medicare group
Freeport, IL 61032
- Reassigned Medicare billing, Illinois enrollment
- 391 clinicians in this Medicare group
Freeport, IL 61032
- Reassigned Medicare billing, Illinois enrollment
- 478 clinicians in this Medicare group
Normal, IL 61761
- Reassigned Medicare billing, Illinois enrollment
- 698 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Illinois Masonic Medical Center
Acute Care Hospitals · Chicago, ILMercy Walworth Hospital & Medical Center
Critical Access Hospitals · Lake Geneva, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60657 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAGO, IL 60657
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Elizabeth Byrne's NPI number?
The NPI number for Elizabeth Byrne is 1609118116. It was assigned to this individual provider in the NPPES registry on March 22, 2013.
Where is Elizabeth Byrne located?
Elizabeth Byrne practices at 836 W Wellington Ave, Chicago, IL 60657. The listed phone number is (773) 296-7054.
What is Elizabeth Byrne's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Elizabeth Byrne enrolled in Medicare?
Yes. Elizabeth Byrne is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Elizabeth Byrne's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elizabeth Byrne reassigns Medicare benefits to 7 organizations: Advocate Health And Hospitals Corp. (Chicago, IL), Mercy Harvard Hospital Inc (Harvard, IL), Mercy Health System Corporation (Lake Geneva, WI), Rockford Health Physicians (Rockford, IL), Freeport Regional Health Care Foundation (Freeport, IL) and 2 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Elizabeth Byrne's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Elizabeth Byrne accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Anthem Blue Cross and Blue Shield list Elizabeth Byrne as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Elizabeth Byrne affiliated with any hospitals?
According to CMS data, Elizabeth Byrne is affiliated with Advocate Illinois Masonic Medical Center and Mercy Walworth Hospital & Medical Center.
When was this NPI record last updated?
The NPPES record for Elizabeth Byrne was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Elizabeth Zeder Byrne, MD · NPI 1609118116
Emergency Medicine physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since March 22, 2013.
## Identity
- **NPI:** 1609118116 (Entity type: Individual)
- **Enumerated:** March 22, 2013
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 036-140161 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 836 W WELLINGTON AVE, Chicago, IL 60657-5147
- **Phone:** (773) 296-7054 · **Fax:** (773) 296-7818
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Advocate Health And Hospitals Corp. (NPI 1487951711, Chicago, IL); Mercy Harvard Hospital Inc (NPI 1427001445, Harvard, IL); Mercy Health System Corporation (NPI 1699728550, Lake Geneva, WI); Rockford Health Physicians (NPI 1043242886, Rockford, IL); Freeport Regional Health Care Foundation (NPI 1457337016, Freeport, IL); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Florida College Of Medicine, class of 2013
## Record status
- **NPPES last updated:** July 16, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1609118116) · Data from the CMS NPPES public registry.